There are too many unknowns here to allow me to price this work. Such as is it a solid concrete base or slabs? Size? Access? Need any hole left by base in-filled? I am more than pleased to visit and estimate - and my visits are free.

price in area of half day rate 70 pound, tipping fee 35 pound
total cost 105 pounds.
to carry waste i need waste carriers permit/licence to which i pay an annual fee , and the waste site charges trade waste prices

Would charge around 150 giving the description without size and looking at it..if it was done in no time at all would give an even better price..if im not there long would feel guilty asking for too much